ABAP Select data from SAP table CTRATEREF into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CTRATEREF table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to CTRATEREF. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the CTRATEREF table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_CTRATEREF TYPE STANDARD TABLE OF CTRATEREF,
      WA_CTRATEREF TYPE CTRATEREF,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <CTRATEREF> TYPE CTRATEREF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CTRATEREF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CTRATEREF
  INTO TABLE IT_CTRATEREF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CTRATEREF
*  INTO TABLE @DATA(IT_CTRATEREF2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_CTRATEREF INDEX 1 INTO DATA(WA_CTRATEREF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CTRATEREF ASSIGNING <CTRATEREF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CTRATEREF>-MANDT = 1.
<CTRATEREF>-TRANSPRATESCALEREFUUID = 1.
<CTRATEREF>-TRANSPORTATIONCALCULATIONBASE = 1.
<CTRATEREF>-TRANSPCALCULATIONBASETEXT = 1.
<CTRATEREF>-TRANSPRATESCALEREFMAXVALISSUPP = 1.

ENDLOOP.

LOOP AT IT_CTRATEREF INTO WA_CTRATEREF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CTRATEREF-TRANSPRATESCALEREFMINVALISSUPP, sy-vline,
  WA_CTRATEREF-TRANSPRATESCREFISRLVTFORBRKWGT, sy-vline,
  WA_CTRATEREF-TRANSPRATESCALEREFSCALETYPE, sy-vline,
  WA_CTRATEREF-TRANSPORTATIONSCALETYPENAME, sy-vline,
  WA_CTRATEREF-TRANSPRATESCALEREFQTYUNIT, sy-vline,
  WA_CTRATEREF-TRANSPRATESCALEREFCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CTRATEREF you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_CTRATEREF TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_CTRATEREF INTO WA_CTRATEREF.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit CUNIT, internal->external for field TRANSPRATESCALEREFQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CTRATEREF-TRANSPRATESCALEREFQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTRATEREF-TRANSPRATESCALEREFQTYUNIT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CTRATEREF_STR, 
MANDT TYPE STRING,
TRANSPRATESCALEREFUUID TYPE STRING,
TRANSPORTATIONCALCULATIONBASE TYPE STRING,
TRANSPCALCULATIONBASETEXT TYPE STRING,
TRANSPRATESCALEREFMAXVALISSUPP TYPE STRING,
TRANSPRATESCALEREFMINVALISSUPP TYPE STRING,
TRANSPRATESCREFISRLVTFORBRKWGT TYPE STRING,
TRANSPRATESCALEREFSCALETYPE TYPE STRING,
TRANSPORTATIONSCALETYPENAME TYPE STRING,
TRANSPRATESCALEREFQTYUNIT TYPE STRING,
TRANSPRATESCALEREFCURRENCY TYPE STRING,
TRANSPRATESCALEREFCALCTYPE TYPE STRING,
TRANSPCALCULATIONTYPENAME TYPE STRING,
TRANSPCALCSHEETITEMUUID TYPE STRING,
TRANSPRATEDIMENSIONINDEX TYPE STRING,
TRANSPSCALEBASEISDATE TYPE STRING,
TRANSPSCALEBASEISNUMERIC TYPE STRING,
TRANSPSCALEBASEISAMOUNT TYPE STRING,
TRANSPSCALEBASEHASUOM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CTRATEREF_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_CTRATEREF_STR-MANDT sy-vline 
WA_CTRATEREF_STR-TRANSPRATESCALEREFUUID sy-vline 
WA_CTRATEREF_STR-TRANSPORTATIONCALCULATIONBASE sy-vline 
WA_CTRATEREF_STR-TRANSPCALCULATIONBASETEXT sy-vline 
WA_CTRATEREF_STR-TRANSPRATESCALEREFMAXVALISSUPP sy-vline 
WA_CTRATEREF_STR-TRANSPRATESCALEREFMINVALISSUPP sy-vline 
WA_CTRATEREF_STR-TRANSPRATESCREFISRLVTFORBRKWGT sy-vline 
WA_CTRATEREF_STR-TRANSPRATESCALEREFSCALETYPE sy-vline 
WA_CTRATEREF_STR-TRANSPORTATIONSCALETYPENAME sy-vline 
WA_CTRATEREF_STR-TRANSPRATESCALEREFQTYUNIT sy-vline 
WA_CTRATEREF_STR-TRANSPRATESCALEREFCURRENCY sy-vline 
WA_CTRATEREF_STR-TRANSPRATESCALEREFCALCTYPE sy-vline 
WA_CTRATEREF_STR-TRANSPCALCULATIONTYPENAME sy-vline 
WA_CTRATEREF_STR-TRANSPCALCSHEETITEMUUID sy-vline 
WA_CTRATEREF_STR-TRANSPRATEDIMENSIONINDEX sy-vline 
WA_CTRATEREF_STR-TRANSPSCALEBASEISDATE sy-vline 
WA_CTRATEREF_STR-TRANSPSCALEBASEISNUMERIC sy-vline 
WA_CTRATEREF_STR-TRANSPSCALEBASEISAMOUNT sy-vline 
WA_CTRATEREF_STR-TRANSPSCALEBASEHASUOM sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.